Individual provider Active NPI

Lianna Williams, MA

  • Speech-Language Pathologist
  • Rockville, MD
National Provider Identifier
1902791189
Registry record updated Jun 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Speech-Language PathologistTaxonomy code 235Z00000X
License
03082L Issued in MD
Practice address
1390 Piccard Dr Ste 100
Rockville, MD 20850-4368
Phone
(301) 327-5199
NPI assigned
Jun 10, 2025
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 10, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Speech-Language PathologistGroup: 193400000X SINGLE SPECIALTY GROUP 235Z00000X 03082L MD Primary

Addresses

Primary practice location

1390 Piccard Dr Ste 100
Rockville, MD 20850-4368

Mailing address

10207 Old Hunt Rd
Vienna, VA 22181-2948
Phone (703) 943-8854

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Master of Arts

State licenses

LicenseStateTypeSpecialty
03082LMDMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Ally Behavior LLC Speech-Language Pathologist CurrentSince Jun 15, 2025 Accepting new patients
Ally Behavior LLC PastSince Jun 15, 2025 Accepting new patients

Locations

1390 Piccard Dr
Ste 100
Rockville, MD 20850
Phone (301) 327-5199

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1749513600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749513600000",
    "number": "1902791189",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10207 OLD HUNT RD",
            "city": "VIENNA",
            "state": "VA",
            "postal_code": "221812948",
            "telephone_number": "703-943-8854"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1390 PICCARD DR STE 100",
            "city": "ROCKVILLE",
            "state": "MD",
            "postal_code": "208504368",
            "telephone_number": "301-327-5199"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "LIANNA",
        "credential": "MA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-06-10",
        "last_updated": "2025-06-10",
        "certification_date": "2025-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Speech-Language Pathologist",
            "state": "MD",
            "license": "03082L",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rockville, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.